For me it seems to be a discussion between two persons. They are talking about Mr. X, who is an actor or a character in a book. The sentence says that Mr. X is a bit (etwas) too overdrawn/overstated (überzogen/übertrieben) shown by the producer/author. In my opinion the word "überzogen" is used just to emphasize the one-sided view on Mr.X. This means that Mr. X could reveal the same message to the audience by simply say the same but in another/less exaggerated way. There is nothing said about the amount of discussion or the need to talk about Mr X.

überzogen dargestellt = übertrieben dargestellt Beispiel: Ein Charakter in einem Film/Buch wird als übertrieben böse dargestellt. Dass er womöglich auch gute Charaktereigenschaften hat, wird nicht erwähnt. (= einseitige Darstellung als 'böse')

I think this is a wax figure, so... In my view the Mr X figure is overdressed and too one-sided.